This super flex herringbone chain comes in 14k yellow gold and has a width of 3.80 millimeters.
Product Details:
Chain Information : 
|  Metal :  | 
 14K Yellow Gold  | 
| Chain Type :  | 
Herringbone | 
| Clasp :  | 
Lobster Clasp | 
| Width :  | 
3.80 mm | 
Approximate Weight:
| Size | 
Weight | 
|      16'' | 
    5.8  grams  | 
|     18''  | 
     6.5  grams  | 
|     20''  | 
     7.3  grams  | 
|     24''  | 
     8.2  grams  |